Efficacy of a heterocyclic ligand anchored biopolymer adsorbent for the sequestration of palladium

被引：26

作者：

Sharma, Shivani ^{[1
]}

Barathi, M. ^{[1
]}

Rajesh, N. ^{[1
]}

机构：

[1] Birla Inst Technol & Sci, Dept Chem, Jawahar Nagar 500078, Shameerpet Mand, India

来源：

CHEMICAL ENGINEERING JOURNAL | 2015年 / 259卷

关键词：

Chitosan; 2-Mercaptobenzimidazole; Palladium adsorption; Regeneration; EFFECTIVE ADSORPTION; HEAVY-METAL; CHITOSAN; REMOVAL; EXTRACTION; PD(II); NANOTUBES; CELLULOSE; CHROMIUM; RECOVERY;

D O I：

10.1016/j.cej.2014.08.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The present work describes the interaction between biopolymer chitosan and mercaptobenzimidazole (MBI) for the adsorption of palladium. The effective coordination with palladium occurs through a secondary host-guest interaction. The probable adsorption mechanism could be understood through FT-IR, SEM, EDX and XRD techniques. The pH of aqueous medium and the adsorbent dosage were optimized through batch adsorption studies. Adsorption kinetics, isotherm models and thermodynamic parameters were utilized in validating the experimental adsorption data. The spontaneity, exothermicity and decreased randomness at the solid-solution interface were also confirmed through the thermodynamic data. The chitosan-MBI adsorbent could be regenerated and reused for 3 cycles using thiourea. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：457 / 466

页数：10

共 42 条

[1]

[Anonymous], J HAZARD MAT

[2]

Awual M.R., 2014, J IND ENG CHEM

[3] Investigation of palladium(II) detection and recovery using ligand modified conjugate adsorbent [J].

Awual, Md. Rabiul ;

Yaita, Tsuyoshi ;

El-Safty, Sherif A. ;

Shiwaku, Hideaki ;

Okamoto, Yoshihiro ;

Suzuki, Shinichi .

CHEMICAL ENGINEERING JOURNAL, 2013, 222 :172-179

[4] Highly selective recovery of palladium by a new silica-based adsorbent functionalized with macrocyclic ligand [J].

Bai, Feifei ;

Ye, Gang ;

Chen, Guangjin ;

Wei, Jichao ;

Wang, Jianchen ;

Chen, Jing .

SEPARATION AND PURIFICATION TECHNOLOGY, 2013, 106 :38-46

[5] Adsorption of chromium(VI) from water by clays [J].

Bhattacharyya, Krishna G. ;

Sen Gupta, Susmita .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (21) :7232-7240

[6] Synthesis and characterization of valonea tannin resin and its interaction with palladium (II), rhodium (III) chloro complexes [J].

Can, Mustafa ;

Bulut, Emrah ;

Ornek, Ahmet ;

Ozacar, Mahmut .

CHEMICAL ENGINEERING JOURNAL, 2013, 221 :146-158

[7] Novel complex gel beads composed of hydrolyzed polyacrylamide and chitosan: An effective adsorbent for the removal of heavy metal from aqueous solution [J].

Cao, Jie ;

Tan, Yebang ;

Che, Yuju ;

Xin, Haipeng .

BIORESOURCE TECHNOLOGY, 2010, 101 (07) :2558-2561

[8] Removal of Pb(II) ions from aqueous solution by adsorption using bael leaves (Aegle marmelos) [J].

Chakravarty, S. ;

Mohanty, Ashok ;

Sudha, T. Nag ;

Upadhyay, A. K. ;

Konar, J. ;

Sircar, J. K. ;

Madhukar, A. ;

Gupta, K. K. .

JOURNAL OF HAZARDOUS MATERIALS, 2010, 173 (1-3) :502-509

[9] Selective extraction of palladium(II) from hydrochloric acid solutions with phosphonium extractants [J].

Cieszynska, A. ;

Wisniewski, M. .

SEPARATION AND PURIFICATION TECHNOLOGY, 2011, 80 (02) :385-389

[10]

Coates J., 2000, Encyclopedia of Analytical Chemistry, P10815, DOI DOI 10.1002/9780470027318.A5606

← 1 2 3 4 5 →